We need to create a way to stop Pregame chat trolling

It is getting worse and worse. Below is a clip of what I have been dealing with and I am getting tired of it. Took me 45 minutes to get into a game because of stuff like this.

Gizmogearbob joined the room. Gizmogearbob did not accept the AFK check. Your group was removed from matchmaking. A player didn't accept the AFK check. Your group was returned to matchmaking. You are now in a chat room with your full champion select team. Gizmogearbob joined the room. xxxxxxxxxxx joined the room. xxxxxxxxxxxxxx1 joined the room. xxxxxxxxxx2 joined the room. Talf joined the room. xxxxxxxxxxxxxx1 : f@@@ you all xxxxxxxxxx2 ZZZ: i really should have denied it, this guy is a basket case xxxxxxxxxx2 ZZZ: and a troll Gizmogearbob : ban requests xxxxxxxxxx2 ZZZ: ban ez xxxxxxxxxxxxxx1 : how am i trolling? xxxxxxxxxxxxxx1 : you stupid n@@@@@@ xxxxxxxxxxxxxx1 : you asked for it xxxxxxxxxxxxxx1 : i now can troll out of f@@@ your lane xxxxxxxxxxxxxx1 : you're going be sorry for it xxxxxxxxxxxxxx1 : little bi@@@ Gizmogearbob : Why? Gizmogearbob : This is ranked not normals xxxxxxxxxxxxxx1 : he banned my champ xxxxxxxxxx2 ZZZ: he's nto normal, look at his chat Gizmogearbob : troll and you will be reported xxxxxxxxxx2 ZZZ: yes, ez top, not cool xxxxxxxxxx2 ZZZ: should we ditch? xxxxxxxxxx2 ZZZ: this guy is unstable Gizmogearbob : We should report both of them after them game Gizmogearbob : so they both get banned xxxxxxxxxx2 ZZZ: who is both? xxxxxxxxxxxxxx1 : Hahaha xxxxxxxxxx2 ZZZ: me/ xxxxxxxxxxxxxx1 : he included you xxxxxxxxxxxxxx1 : LMFAO xxxxxxxxxx2 ZZZ: lol we are ditching, later Gizmogearbob : you banned his champ xxxxxxxxxx2 ZZZ: ez TOP?!?!!? you're an idiot Gizmogearbob : you are tyring to make him troll